<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <link rel="stylesheet" href="css/style.css">
</head>
<body> 
  <button class="btn1">改变背景</button>
  <button class="btn2">开始/继续</button>
  <button class="btn3">暂停</button>
  <button class="btn4">加速</button>
  <button class="btn5">减速</button>
  <button class="btn6">重置</button>
  <button class="btn7">变色蛇</button>
  <div id="map"></div>
  
  <script src="js/tools.js"></script>
  <script src="js/food.js"></script>
  <script src="js/snake.js"></script>
  <script src="js/game.js"></script>
  <script src="js/main.js"></script>
</body>
</html>
